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Tire condition detection system and induction feed method thereof

  • US 20070222570A1
  • Filed: 02/20/2007
  • Published: 09/27/2007
  • Est. Priority Date: 02/28/2006
  • Status: Active Grant
First Claim
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1. A tire condition detection system comprising:

  • a tire, internally provided with conductive reinforcement material;

    an external antenna, fixed in proximity to the outside of said tire, and radiating to said tire electromagnetic waves that generate an induce alternating current in said reinforcement material;

    an internal antenna, fixed at said tire side, receiving an alternating magnetic field generated in the space inside said tire due to said induced alternating current generated in said reinforcement material, and outputting a received signal;

    a power source, fixed at said tire side, converting said received signal into alternating current power and outputting source power; and

    a detector, fixed at said tire side, operated by said source power, detecting predetermined conditions inside said tire and transmitting the detected signal by electromagnetic waves to said external antenna via said internal antenna and said reinforcement material.

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